diff --git a/pomice/player.py b/pomice/player.py
index 99ae5f1..061e062 100644
--- a/pomice/player.py
+++ b/pomice/player.py
@@ -255,7 +255,7 @@ class Player(VoiceProtocol):
             }
 
         if end > 0:
-            data["endtime"] = str(end)
+            data["endTime"] = str(end)
 
         await self._node.send(**data)